Answer:
Step-by-step explanation:
The slope of straight line PR where P(2,3) and R(5,-1) are two vertices of triangle PQR will be = 
Therefore, the slope of the altitude passing through Q(-1,1) will be 
{Since, the product of slopes of two perpendicular straight line is -1}
So, equation of the altitude is 
where c is a constant.
Now, putting x = -1 and y = 1 in the above equation we get
⇒ 
Therefore, the equation of the altitude is (Answer)
Answer:
2:4, 3:6, 4:8, 6:12, etc
Step-by-step explanation:
hope it helps
Answer:
a = 20
Step-by-step explanation:
The mean is calculated as
mean = 
= 
= 
Then
= 27 ( multiply both sides by 5 to clear the fraction )
115 + a = 135 ( subtract 115 from both sides )
a = 20
Answer:
Hope this is correct and helpful
HAVE A GOOD DAY!
